diff options
| author | Ingo Molnar <[email protected]> | 2016-06-08 09:26:46 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2016-06-08 09:26:46 +0200 |
| commit | 616d1c1b98ac79f30216a57a170dd7cea19b3df3 (patch) | |
| tree | 6f244c2e5a7160190e73bc82b4cd7fa7bb22ee31 /drivers/usb/misc/usbtest.c | |
| parent | a4f144ebbdf6f7807c477bce8e136047ed27321f (diff) | |
| parent | c8ae067f2635be0f8c7e5db1bb74b757d623e05b (diff) | |
Merge branch 'linus' into perf/core, to refresh the branch
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/usb/misc/usbtest.c')
| -rw-r--r-- | drivers/usb/misc/usbtest.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 92fdb6e9faff..6b978f04b8d7 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -287,6 +287,9 @@ static struct urb *usbtest_alloc_urb( if (usb_pipein(pipe)) urb->transfer_flags |= URB_SHORT_NOT_OK; + if ((bytes + offset) == 0) + return urb; + if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset, GFP_KERNEL, &urb->transfer_dma); @@ -529,6 +532,7 @@ static struct scatterlist * alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe) { struct scatterlist *sg; + unsigned int n_size = 0; unsigned i; unsigned size = max; unsigned maxpacket = @@ -561,7 +565,8 @@ alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe) break; case 1: for (j = 0; j < size; j++) - *buf++ = (u8) ((j % maxpacket) % 63); + *buf++ = (u8) (((j + n_size) % maxpacket) % 63); + n_size += size; break; } |